Distylium plant named &#39;PIIDIST-V&#39;

ABSTRACT

A new and distinct cultivar of  Distylium  plant named ‘PIIDIST-V’, characterized by its compact, layered, and mounding growth habit, reddish new growth, blue-green mature foliage, and cold tolerance.

GENUS AND SPECIES OF PLANT CLAIMED

Distylium sp. hybrid

VARIETY DENOMINATION

‘PIIDIST-V’

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Distylium plant, botanically known as Distylium hybrid, a member of the Hamamelidaceae, and hereinafter referred to by the cultivar name ‘PIIDIST-V’.

‘PIIDIST-V’ originated as an open-pollinated seedling from seed collected from Distylium hybrid ‘PIIDIST-II’(U.S. Plant Pat. No. 24,409) growing in Watkinsville, Ga. ‘PIIDIST-V’ is a Distylium sp. hybrid (Distylium myricoides×D. racemosum which was confirmed by DNA testing) and was selected in the summer of 2012 by the inventor in a cultivated environment in Watkinsville, Ga.

Asexual reproduction of ‘PIIDIST-V’ by stem cuttings in Watkinsville, Ga. since 2012 has shown that all the unique features of ‘PIIDIST-V’, as herein described, are stable and reproduced true-to-type through successive generations of such asexual propagation.

SUMMARY OF THE INVENTION

Plants of the new cultivar ‘PIIDIST-V’ have not been observed under all possible environmental conditions. The phenotype may vary somewhat with changes in light, temperature, soil and rainfall without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be unique characteristics of ‘PIIDIST-V’. These characteristics in combination distinguish ‘PIIDIST-V’ as a new and distinct cultivar: 1. Compact, layered, and mounding growth habit; 3. Reddish new growth; 3. Small strapped-shaped, blue-green foliage on mature growth; and 4. Increased cold hardiness compared to the parent.

Plants of ‘PIIDIST-V’ differ from plants of the parent, Distylium hybrid ‘PIIDIST-II’ (U.S. Plant Pat. No. 24,409), primarily in growth habit, foliage color, foliage size, as plants of ‘PIIDIST-V’ have smaller, more compact, mounding growth habit and smaller, linear-ovate, blue-green foliage, and increased cold tolerance to −15° C. ‘PIIDIST-II’ (U.S. Plant Pat. No. 24,409) has larger blue-green leaves, an open, larger growth habit, stems that are more upright, and is less cold tolerant to −12° C.

Plants of the new Distylium ‘PIIDIST-V’ can be compared to plants of the cultivar ‘Vintage Jade’ (U.S. Plant Pat. No. 23,128), ‘Vintage Jade’ has a compact, layered, mounding, and spreading growth habit, light green new growth, lustrous dark green mature foliage, and larger leaves, whereas ‘PIIDIST-V’ has a compact, layered growth habit, reddish new growth, blue-green mature foliage, and mature size one-half that of that of ‘Vintage Jade’.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying color photographs illustrate the foliage characteristics and the overall appearance of ‘PIIDIST-V’, showing the colors as true as it is reasonably possible to obtain in color reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of ‘PIIDIST-V’.

FIG. 1 illustrates the overall appearance and growth habit of a three-year-old ‘PIIDIST-V’ plant.

FIG. 2 illustrates a close-up of the new growth and mature foliage of a three-year-old ‘PIIDIST-V’ plant.

DETAILED DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2007 Edition, except where general terms of ordinary dictionary significance are used. The plant used for the description was approximately three-years-old and was grown in the ground under outdoor conditions in Watkinsville, Ga.

Botanical classification: Distylium hybrid, cultivar ‘PIIDIST-V’. Parentage: Female, or seed, parent: Distylium hybrid ‘PIIDIST-II’ (U.S. Plant Pat. No. 24,409), Male, or pollen parent: unknown (open-pollinated). Propagation: stem cuttings. Time to initiate roots in summer: about 3 to 4 weeks at 32° C.

-   Plant description: Broadleaf evergreen shrub; multi-stemmed;     compact, mounding and spreading growth habit. Freely branching;     removal of the terminal bud enhances lateral branch development.     -   -   Root description.—medium, well-branched, diffuse and             extensive.         -   Plant size.—the original plant, now about three-years-old in             the ground, is about 47 cm high from the soil level to the             top of the foliage and about 90 cm wide. First year stems             having a diameter of about 2 mm. Shape: round. Fine             pubescence. Few small lenticels about 1 mm in diameter and             N199B in color.         -   First year stem color.—146A. Second year and older stems             have a diameter of about 3 mm or more. Shape: round.         -   Second year and older stem color.—N200A.         -   Stem strength.—flexible when young, less flexible once             mature.         -   Internode length.—about 1.4 cm.         -   Trunk diameter.—about 4 cm at the soil line. Color: 199B.             Bark: does not exfoliate, covered with many lenticels, N199B             in color, about 1 mm in diameter. -   Vegetative bud description:     -   -   Arrangement.—alternate.         -   Shape.—ovoid with fused, pubescent bud scales.         -   Size.—about 2 mm in length and about 1 mm in width.         -   Color.—200A. -   Foliage description:     -   -   Arrangement.—alternate, simple. Length: about 5 cm. Width:             about 12 mm. Shape: Ovate-lanceolate. Apex: Acute. Base:             Cuneate. Margin: entire, occasionally undulating.         -   Texture (upper and lower surfaces).—smooth, thick, leathery.         -   Venation pattern.—pinnate. Venation color (upper and lower             surfaces): midrib color is 147B and secondary vein color is             147A.         -   Color of emerging foliage (upper surface).—183A. Color of             emerging foliage (lower surface): 147C. Color of mature             foliage (upper surface): 139A. Color of mature foliage             (lower surface): 139C.         -   Petiole length.—about 4 mm. Petiole diameter: about 1 mm.             Fine pubescence 199A in color. Petiole color (upper and             lower surfaces): 139C. -   Flower description: The original plant is three-years-old and has     not flowered to date. -   Fruit: The original plant is three-years-old and has not produced     fruit to date. -   Plant hardiness:     -   -   Plant hardiness.—USDA Hardiness Zone Map (2012): Zones 7-9. -   Disease/pest resistance: Plants of the new Distylium grown in the     nursery and garden have not been noted to be susceptible to     pathogens or pests. 

I claim:
 1. A new and distinct Distylium plant named ‘PIIDIST-V’, as illustrated and described herein. 